Lining for combustion chambers



April 30, 1929. w, w, BURNS 1,110,860

LINING FOR GOMBUSTION CHAMBERS Filed Oct. 16, 1926 Patented Apr. 30,1929.

UNITED. STATES PATENT ori-ieri.'

WALTER W. BURNS, F GREENPORT, NEW YORK, As'sxGNoR To (LUFARQUHARYCOM- fANY, LIMITED, OF YORK, PENNSYLV SYLVANIA.

ANIA, A LMITED PARTNERSHIP' on PENivf LINING Fon COMBUSTIONCHAMBERS.

Application filed October y1G, QBZGQ Serial No. 142,128.

lli is invention relates to metallic lining for the lire oreoniliination Chanibers ot bollers anni the like.

il primair),Y object ol thisV invention is the tion rhfinibers ofboilers ond the like comprising rl'ionsi hnving overlapping portionsnnrl 2U @an i sferl'ion being' provirleijl with n flnnge eX- tenflinn;its axial length lforrontnetwith the miler irnll of the ohninber,thereby formin@y n ,eerie-o ol" enpnrnte elnnnbers between the lining:nnl the onter woll. Y l ltlinr :ind 'further objects of my inventionwill be npi'nirent to those skilled Ain `the nrt i'roin n r=.i nrliinlof the complete specification ,lulniina le Solution of ille problem. oftiniliiig; n lining; Alor combustion olifnnlwrsoif `:ind nortionlnrlythat type which is inmini A, oniwlieelo :nifl iliortnble hns long wennkeoniiht. The intense lient when no lin'- infg; if: enipli/iyml, nosesthe outer shell of the i 'i'ion rliznnbor to become burned nml si ippenr and mejor repairs In order to overcome this l 1 noilee with, moreor lese sineoess. Y

The fflislinpniishing feature of the present im'frntion is that flangesnre provided on the inotnllie lining sections which Hongos (llyiile theeprice between the lining and the onter nhellol the chamber intosections which :ire pinning-filly cien/Ligne spaces; t Referring to thedrawing wherein Id have ill nstrai ted. o prifrferretl embodiment oit'Vmy invention f Figure l is :in end View of n'boi-ler Coinbnstionehoinber showing my improved liningr 1n pince. the closure nieniber ofthe con'ibustion rhninbr-r being' rel'novecl to show the interioroonotrilrtion.

Fig. 3 :in enlarged edge `View ofoneof the Sections. -V

in F: bfiniil or similar parl-s throughout the several views olf thedrawing.

l() designates the `outer mill oil' the tion ehninber of the boiler l11.i

The gener-:il l@impe` of my. iinprovefllining` eoinlone` :is :xfwholeifs tlintof :rcnilinder,` lnttonerlnt i the top, in n horinontiillyliliepofleil`boi lei-,this

flattened portion being Vproiirlerl to" protect" that portion olE theboiler nbovetlie 'water line. The `liningiorilivujleil into 1r Serien ofroni'iloinentirry @notions arranged about ond, within the lower portion'ofthe outer Wall of;

tions I two in nninbem.which sentionsifoinpletothe nllfig. Quienerosseojetion on the liner 2-2101 Fig. 1i inn plnnview of thesectionShown n r relerenre elinrzioters relier to the sziiineoylinrlrienl Inirtion ol" thelining. I lmv'eideSffy f ignored theseSections` inerzils 14 und l5; i Forli section oftlie'liningis providedwith on overlapping poi-lionne :it lglgflfl; 15a; ohi l inrl in 'pirrespectively by, the nn:V

itiontooverlap the adjacent' 3 le nekt lining; eotion'insuoh n man- 'N'nrilfnceeof :mijn nit ol grenier vnrinririneinthepoeitionsofthe i boltholes: (lnrinriV eonsulrnizl. innnclto porn'iit the nee oi sectionshnring'shglit variation in forni. i f

A il-ietingnishifng eiltnre of 'my 'lining is that to sljinre'theliningr :from the Wall ofthe` Vclminber, I provide 'spneinir flangesriesig# initrd at 13h, l p piefernfblji7 n ri'nngg'erh1 one foreachsectionimd placed adjacent Itheedgefofn sootion1 thereboing;preferably.though not'riooessiirilygone;

flange Vfor iooohfeeetion.` Tho exaiot "ongle which the flange :is oWhole iniilesto'lllielmf ing section not essentiel. Il; mayfbeinode" atSnr-li an ongle :is is Convenient 'for the `pritl'ern tobe ilrnnjn from`the mould;

In order to "hohl tlieseetions in pluee and keep the 'flnngei of the.espective sections ngninst the outer fvnll "ofthe combustion ioochamber, I have provided bosses 13, 14, 15 which are integral with thelining sections 'and are cast around bolts 13d, 14d, 15d respectively.These bolts pass through suitably spaced holes in the shell of thecombustion chamber and are held in position by suitable nuts, as shown.

In the embodiment herein illustrated, I have shown a single supportingflange 13b, 14, 15b for each respective section adjacent the respectiveoverlapping portions 13', 14, 15. In this way only one supporting flangeis necessary for each section since one overlapping flange acts as asupport for its own section and also the adjacent section.

Each section is perforated at intervals throughout its body portion withsmall holes as for example holes three-eighths of an inch in diameterand one and one-half` inches apart. Y

The construction which I have described forms sectional spaces betweenthe lining and the outer 'all of the combustion chamber. I have foundthat this space should be greater than the thickness of the lining bodyand that the supporting flanges 13", lll) and 15" should be of greaterdepth in a direction from and to the axis of the combustion chamber,than its thickness. In this way, sufficient heat is not conducted tothewall of the conibustion chamber to do any harm.

These supporting flanges have a tendency to divide the accumulation of.'ashes in the space between the lining and combustion chamber wall intoseveral parts. This permits of a less frequentcleaning of the spacebetween the lining and the outer wall of the combustion chamber and alonger life to the lining sections at the bottom.

In practice it has been found that the long supporting flange is easy tofit intoits place and its length gives it. stability and decreasesliability of breakage. j

lhile I have illustrated and described in detallan embodiment of myinvention, I desire to have it understood that I do not limit myself tothe'exact showing and that modifications and changes may be made withoutdeparting from the spiritof my invention and within the scope oftheappended claims.

Having described .my invention what I claim is: y Y

l. A lining :for comlnistionv chambers of boilers and the likecomprising sections, supporting flanges projecting frdm the respectivesections and extending substantially the length of the sections, thesections extending about the combustion chamber, the flanges dil vidingthe space between the linin and outer combustion chamber wall intosections, the space between the lining and outer wall being greater thanthe thickness of the lining.

2. A lining for combustion chambers of boilers and the like comprisingsections, supporting flanges projecting from the respective sections andextending substantially the length of the sections and having theiredges in contact with the combustion chamber wall, the flanges dividingthe space between the lining and outer combustion chamber all intosections, the proportions of' the supporting flanges being such as tospace the lining .from the outer wall of the comlmstion chamber a.greater distance than the thickness of the flange.

3. A lining for combustion chamlicrs of boilers and the like, comprisingsections provided with portions overlapping adjacent sections,sujiporting flanges projecting from. the respective sections andextending substantial ly the length of the sections, the flangesdividing the space between the lining and outer combustion chamber wallinto sections, the proportions of the supporting flanges being such asto space the lining from the outer wall of the con'ibustiou clunnber agreater distance than the thickness of the flange.

l. A lining for combustion chambers ol boilers and the like comprisingsections, adjacent sections having overlapping portions, a supportingflange for each section and located adjacent the overlzfipjjiingportion.` the supporting flanges extending substantially the length ofthe sections and dividing the space between the lining and other combuswtion chamber wall into sections, the proper`- tions of' the supportingflanges being such as to space the lining from the outer wall of thecombustion chamber a greater distance than the thickness of the flange.

A lining for combustion chambers of boilers and the like comprisingsections, supporting flanges projecting from the respective sections andextending substantially the length ofthe sections, the flanges dividingthe space between the lining and outer conibustion chaniber wall intosections, the area of the contacting line between the flange and outerwall being small compared to tlie cross section of the space betweenAthe lining and the outer wall.

(3. A lining for combustion chambers of boilers and the like comprisingsections, overlapping portions extending from each section adjacent itsneighboring section, a supportnig flange extending from the body of eachsection adjacent the overlapping portion, the supporting flangeextending sub stantlallythe length of the section and means for holdingthe sections in place with in a coinbustion chamber.

In testimony whereof I hereunto aflix mv signature. u

WALTER W. BURNS.

